Description

In iOS canvas.GetStringSize() seems not to handle correctly newlines. It creates a Size wide as the longest row and high as a single row.

You can verify this by running the project in repro and setting NEWLINE_IOS global variable (if not already set) in MyDrawable.cs.

In my opinion this issue could be linked to #8486.

Steps to Reproduce

1. Create a GraphicsView with a Drawable.
2. Define a string StringToVisualize with newlines, like this one: "HELLO, WORLD!\nCiao mondo row 2\n\nGuten tag!?àèìòù@"
3. Choose a FontSize
4. Inside the Draw() method, call canvas.GetStringSize(StringToVisualize, Font.Default, FontSize);
5. Draw a rectangle with the size returned by the call at point 4.

Expected Result (Android)

Actual Result (iOS)

Link to public reproduction project repository

https://github.com/Riccardo11/MauiIssues/tree/main/MeasureStringWrongBounds

Version with bug

8.0.0-rc.2.9511

Is this a regression from previous behavior?

Not sure, did not test other versions

Last version that worked well

Unknown/Other

Affected platforms

iOS

Affected platform versions

iOS16, iOS17. Couldn't test other versions

Did you find any workaround?

Calculating string size by hand.

Relevant log output

No response